<template>
  <div class="login-wrap">
    <div class="ms-title">图书管理系统</div>  
    <div class="ms-login">
      <el-form
        ref="ruleForm"
        class="demo-ruleForm"
        :model="ruleForm"
        :rules="rules"
      >
        <el-form-item  prop="username">
          <el-input v-model="ruleForm.username" type="text" placeholder="账号"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            type="password"
            v-model="ruleForm.password"
            autocomplete="off"
            placeholder="密码"
          ></el-input>
        </el-form-item>
        <div class="login-btn">
          <el-button type="primary" @click="submitForm" v-loading="loading">登录</el-button>
          
        </div>
      </el-form>
    </div>
  </div>
</template>

<script>
import request from "../utils/request";

export default {
    name: 'Login',
    data() {
        return {
            ruleForm: {
                username: '',
                password: ''
            },
            rules: {
                username: [{ required: true, message: '请输入用户名', trigger: 'blur' }],
                password: [{ required: true, message: '请输入密码', trigger: 'blur' }]
            },
            loading: false
        }
    },
    methods: {
        submitForm() {
        // 点击登录后，让登录按钮开始转圈圈（展示加载动画）
          this.loading = true;
              request.post("/login",this.ruleForm)
                .then(res=>{
                  if (res.code == '0'){
                      this.$router.push({name:'Book'})
                  }
                  else if (res.code == '1'){
                      alert("用户或密码错误")
                      this.loading = false
                  }     
                  })
                  .catch(err => {
                      console.error(err)
                  })
            
      }
    },
}
</script>

<style scoped>
.login-wrap {
  position: relative;
  background: url('../assets/imgs/background.jpg');
  background-attachment: fixed;
  background-position: center;
  background-size: cover;
  width: 100%;
  height: 100%;
}

.ms-title {
  position: absolute;
  top: 50%;
  width: 100%;
  margin-top: -230px;
  text-align: center;
  font-size: 30px;
  font-weight: 600;
  color: #fff;
}

.btn-fullscreen{
  
  float: right;
  padding: 0 21px;
  cursor: pointer;
}

.header-right {
  position: absolute;
  right: 0;
  padding-right: 30px;
}

.ms-login {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 300px;
  height: 160px;
  margin: -150px 0 0 -190px;
  padding: 40px;
  border-radius: 5px;
  background: #fff;
}

.login-btn {
  text-align: center;
}

.login-btn button {
  width: 100%;
  height: 36px;
}
</style>

